20419955

素因数分解:

$5^1\times {\mathrm{71}}^1\times {\mathrm{97}}^1\times {\mathrm{593}}^1$

素因数の和:766

約数の個数: 16

約数和(自身を含む): 25147584

約数和(自身を除く): 4727629

約数列:

[1, 5, 71, 97, 355, 485, 593, 2965, 6887, 34435, 42103, 57521, 210515, 287605, 4083991, 20419955]

約数ペア:

[(1, 20419955), (5, 4083991), (71, 287605), (97, 210515), (355, 57521), (485, 42103), (593, 34435), (2965, 6887)]